Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title Lynx vulnerability
Informations
Name USN-206-1 First vendor Publication 2005-10-17
Vendor Ubuntu Last vendor Modification 2005-10-17
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog) Ubuntu 5.04 (Hoary Hedgehog) Ubuntu 5.10 (Breezy Badger)

The following packages are affected:

lynx

The problem can be corrected by upgrading the affected package to version 2.8.5-1ubuntu1.1 (for Ubuntu 4.10), 2.8.5-2ubuntu0.5.04 (for Ubuntu 5.04), or 2.8.5-2ubuntu0.5.10 (for Ubuntu 5.10). In general, a standard system upgrade is sufficient to effect the necessary changes.

Details follow:

Ulf Harnhammar discovered a remote vulnerability in Lynx when connecting to a news server (NNTP). The function that added missing escape chararacters to article headers did not check the size of the target buffer. Specially crafted news entries could trigger a buffer overflow, which could be exploited to execute arbitrary code with the privileges of the user running lynx. In order to exploit this, the user is not even required to actively visit a news site with Lynx since a malicious HTML page could automatically redirect to an nntp:// URL with malicious news items.

Original Source

Url : http://www.ubuntu.com/usn/USN-206-1

CAPEC : Common Attack Pattern Enumeration & Classification

Id Name
CAPEC-47 Buffer Overflow via Parameter Expansion
CAPEC-100 Overflow Buffers
CAPEC-123 Buffer Attacks

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-131 Incorrect Calculation of Buffer Size (CWE/SANS Top 25)

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:9257
 
Oval ID: oval:org.mitre.oval:def:9257
Title: Stack-based buffer overflow in the HTrjis function in Lynx 2.8.6 and earlier allows remote NNTP servers to execute arbitrary code via certain article headers containing Asian characters that cause Lynx to add extra escape (ESC) characters.
Description: Stack-based buffer overflow in the HTrjis function in Lynx 2.8.6 and earlier allows remote NNTP servers to execute arbitrary code via certain article headers containing Asian characters that cause Lynx to add extra escape (ESC) characters.
Family: unix Class: vulnerability
Reference(s): CVE-2005-3120
 Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
 Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 2

OpenVAS Exploits

Date Description
2008-09-24 Name : Gentoo Security Advisory GLSA 200510-15 (Lynx)
File : nvt/glsa_200510_15.nasl
2008-09-04 Name : FreeBSD Ports: lynx
File : nvt/freebsd_lynx.nasl
2008-01-17 Name : Debian Security Advisory DSA 1085-1 (lynx-ssl)
File : nvt/deb_1085_1.nasl
2008-01-17 Name : Debian Security Advisory DSA 874-1 (lynx)
File : nvt/deb_874_1.nasl
2008-01-17 Name : Debian Security Advisory DSA 876-1 (lynx-ssl)
File : nvt/deb_876_1.nasl
0000-00-00 Name : Slackware Advisory SSA:2005-310-03 lynx
File : nvt/esoft_slk_ssa_2005_310_03.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
20019 Lynx NNTP HTrjis() Function Remote Overflow

Nessus® Vulnerability Scanner

Date Description
2011-05-28 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2005-310-03.nasl - Type : ACT_GATHER_INFO
2006-10-14 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1085.nasl - Type : ACT_GATHER_INFO
2006-10-14 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-874.nasl - Type : ACT_GATHER_INFO
2006-10-14 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-876.nasl - Type : ACT_GATHER_INFO
2006-07-03 Name : The remote CentOS host is missing a security update.
File : centos_RHSA-2005-803.nasl - Type : ACT_GATHER_INFO
2006-05-13 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_c01170bf499011daa1b8000854d03344.nasl - Type : ACT_GATHER_INFO
2006-01-15 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-206-1.nasl - Type : ACT_GATHER_INFO
2006-01-15 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-206-2.nasl - Type : ACT_GATHER_INFO
2005-10-19 Name : The remote Fedora Core host is missing a security update.
File : fedora_2005-993.nasl - Type : ACT_GATHER_INFO
2005-10-19 Name : The remote Fedora Core host is missing a security update.
File : fedora_2005-994.nasl - Type : ACT_GATHER_INFO
2005-10-19 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200510-15.nasl - Type : ACT_GATHER_INFO
2005-10-19 Name : The remote Mandrake Linux host is missing a security update.
File : mandrake_MDKSA-2005-186.nasl - Type : ACT_GATHER_INFO
2005-10-19 Name : The remote Red Hat host is missing a security update.
File : redhat-RHSA-2005-803.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 12:02:53
  • Multiple Updates